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Hello all, Here is my new contribution to this classification program with DT Psc, a very bright target, which is identified as a symbiotic star in the Simbad database. I obtained the following spectrum of DT Psc the 28th of August at 0 h 56 TU with my Alpy 600 (resolution of 541, JJ = 2459819.539) ...

Hello all, Here is my contribution to this new update of the symbiotic stars classification program. I obtained the following spectrum of Hu 2-1 the 27th of August at 22 h 30 TU with my Alpy 600 (resolution of 535, JJ = 2459819.4379) and an acquisition time of 40 min (8 x 300s) : _hu21_20220827_938_...

Hello all, Here is my contribution to the monitoring of StHa 154. I obtained the following spectrum of StHa 154 with a spectral range from 3700 to 7565 A the 2nd of August at 22 h 47 TU with my Alpy 600 (resolution of 536, JJ = 2459794.4494) and an acquisition time of 80 min (8 x 600 s) : _stha154_2...

Bonjour Guillaume,

Très impressionnant tes débuts en spectro avec le Star'ex !!
Sois le bienvenu sur le forum ARAS !!

Christophe BOUSSIN

Hi Hugh, You did a really great job !! Yes, this nova was really amazing to follow and... the story is not quite over ;-) ! I'm back with a new spectrum of the Nova Cas 2021 obtained the 19th of June at 0 h 40 TU (resolution of 542, JJ = 2459749.528) with my Alpy 600 and an acquisition time of 50 mi...

Hi Robin, I found this very interesting publication (in free access) : P Cygni profiles atop broad emission lines  Roberto Cid Fernandes, Jr Monthly Notices of the Royal Astronomical Society, Volume 305, Issue 3, May 1999, Pages 602–614, https://doi.org/10.1046/j.1365-8711.1999.02466.x Spectroscopic...

Hello all, A new paper has been published about the Nova V392 Per that we have observed during the month of May in 2018 ! V392 Persei: a γ-ray bright nova eruption from a known dwarf nova F. J. Murphy-Glaysher, M. J. Darnley, É. J. Harvey, A. M. Newsam, K. L. Page, S. Starrfield, R. M. Wagner, C. E....

Thanks Robin ! I downloaded your spectra and compared the one of May 4 with Joan Guarro Flo's (May 5) and mine (May 7): they are in good agreement....except the resolution of course ;) ! Very interesting to see the evolution of the velocity from your spectra : thanks for sharing ! Let's hope we can ...

Hello all, This is my first attempt to get a supernova spectrum ! The spectrum is unfortunately noisy but it seems to me that it shows some changes compared to the first spectra in this post...? Many thanks to Joan Guarro Flo for sharing the files of his incredible echelle spectrum of SN 2022hrs !! ...

Hello all, A new paper on the RS Oph outburst has just been published : "The 2021 outburst of the recurrent nova RS Ophiuchi observed in X-rays by the Neil Gehrels Swift Observatory: a comparative study" K.L. Page , A.P. Beardmore , J.P. Osborne , U. Munari , J.-U. Ness , P.A. Evans , M.F....